COROCARB NIA
CLASSIFICATION
Welding Rod DIN-EN 14700 ¾ T Ni 20-55-CG
GENERAL CHARACTERISTICS
COROCARB–NIA is a cold rolled, formed, closed seam nickel tube filled with fused tungsten carbide (FTC) and Cr, B and Si for oxyacetylene application. The deposited alloy consists of approximately 65% FTC and 35% Ni-Cr-B-Si-matrix. COROCARB–NIA wets easily and has excellent flow producing a smooth, clean surface. COROCARB–NIA has a low melting point of approx. 900 – 1050°C. The overlay is extremely resistant to acids, bases, lyes and other corrosive media and other excessive wear conditions.
APPLICATIONS
Hardfacing on ferritic and austenitic steels (steel casings), overlaying mixer blades and conveyors & screws in: chemical & dye industry and food industry. Recommended for hardfacing rock bits and stabilizers in the petroleum industry.
RECOMMENDED WELDING DIRECTIONS
The surface to be hardfaced should be clean and free of rust, scale or grease and other dirt, preferably by grinding or shot blasting. Deposits should be made using a gas flame with a neutral to slight acetylene excess. To avoid puddling and overheating, sweat deposits on the base metal with minimum penetration.
TYPICAL HARDNESS
FTC: approx. 2360 HV0,4
Ni-Cr-B-Si-Matrix: approx. 450 - 520 HV0,1
SIZES AVAILABLE
| Type |
Ø mm |
Ø mm |
Grain size mm | US mesh size |
Color code |
| 4005 | 4,0 | 5/32 | 0,25 - 0,70 | 24 - 60 | white |
| 4010 | 4,0 | 5/32 | 0,70 - 1,20 | 14 - 24 | yellow |
| 4015 | 4,0 | 5/32 | 1,00 - 1,60 | 10 - 16 | red |
| 5005 | 5,0 | 3/16 | 0,25 - 0,70 | 24 - 60 | white |
| 5010 | 5,0 | 3/16 | 0,70 - 1,20 | 14 - 24 | yellow |
| 5020 | 5,0 | 3/16 | 1,00 - 2,00 | 9 - 16 | green |
| 6005 | 6,0 | 1/4 | 0,25 - 0,70 | 24 - 60 | white |
| 6010 | 6,0 | 1/4 | 0,70 - 1,20 | 14 - 24 | yellow |
| 6020 | 6,0 | 1/4 | 1,00 - 2,00 | 9 - 16 | green |
Corodur Fülldraht GmbH may change the characteristics of the wire without notice. Statements on composition and application are just for the applier’s information. Statements on mechanical properties always refer to the all-weld-metal according to valid standards. We recommend the applier to check our products for their special application autonomously.